From:   "Zhou, Jie2X" <jie2x.zhou@intel.com>
To:     "keescook@chromium.org" <keescook@chromium.org>,
        "arnd@arndb.de" <arnd@arndb.de>,
        "gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>
CC:     "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "Li, Philip" <philip.li@intel.com>,
        "fnstml-lkp@cn.fujitsu.com" <fnstml-lkp@cn.fujitsu.com>
Subject: kernel-selftests/lkdtm: USERCOPY_STACK_FRAME_TO fail
Thread-Topic: kernel-selftests/lkdtm: USERCOPY_STACK_FRAME_TO fail
Thread-Index: AQHX3SulU3HBBE2rF0qjDo0wAWWSAw==
Date:   Fri, 19 Nov 2021 10:09:37 +0000
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hi,=0A=
  LKP test try to test kernel selftests/lkdtm.=0A=
  But I got some error like following:=0A=
=0A=
# [  107.625978] lkdtm: ok: SMEP did not get cleared=0A=
# [  107.625980] lkdtm: trying to clear SMEP with call gadget=0A=
# [  107.625983] lkdtm: ok: SMEP removal was reverted=0A=
# UNSET_SMEP: saw 'pinned CR4 bits changed:': ok=0A=
ok 15 selftests: lkdtm: UNSET_SMEP.sh=0A=
=0A=
# [  108.321689] lkdtm: Performing direct entry SLAB_LINEAR_OVERFLOW=0A=
# =0A=
# [  108.333630] lkdtm: Attempting slab linear overflow ...=0A=
# SLAB_LINEAR_OVERFLOW: missing 'call trace:': [FAIL]=0A=
not ok 19 selftests: lkdtm: SLAB_LINEAR_OVERFLOW.sh # exit=3D1=0A=
=0A=
# READ_AFTER_FREE: missing 'call trace:|Memory correctly poisoned': [FAIL]=
=0A=
not ok 22 selftests: lkdtm: READ_AFTER_FREE.sh # exit=3D1=0A=
=0A=
# READ_BUDDY_AFTER_FREE: missing 'call trace:|Memory correctly poisoned': [=
FAIL]=0A=
not ok 24 selftests: lkdtm: READ_BUDDY_AFTER_FREE.sh # exit=3D1=0A=
=0A=
# USERCOPY_STACK_FRAME_TO: missing 'call trace:': [FAIL]=0A=
not ok 69 selftests: lkdtm: USERCOPY_STACK_FRAME_TO.sh # exit=3D1=0A=
=0A=
# USERCOPY_STACK_FRAME_FROM: missing 'call trace:': [FAIL]=0A=
not ok 70 selftests: lkdtm: USERCOPY_STACK_FRAME_FROM.sh # exit=3D1=0A=
=0A=
# STACKLEAK_ERASING: missing 'OK: the rest of the thread stack is properly =
erased': [FAIL]=0A=
not ok 73 selftests: lkdtm: STACKLEAK_ERASING.sh # exit=3D1=0A=
=0A=
# CFI_FORWARD_PROTO: missing 'call trace:': [FAIL]=0A=
not ok 74 selftests: lkdtm: CFI_FORWARD_PROTO.sh # exit=3D1=0A=
=0A=
# FORTIFIED_SUBOBJECT: missing 'call trace:': [FAIL]=0A=
not ok 77 selftests: lkdtm: FORTIFIED_SUBOBJECT.sh # exit=3D1=0A=
=0A=
Am I missing something special(kconfig, packages etc). ?=0A=
=0A=
My kernel is v5.15 =0A=
=0A=
best regards,=